A5011501177- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Advanced Battery Technologies Research
- Supercapacitor Materials and Fabrication
- Extraction and Separation Processes
- Advanced battery technologies research
- Semiconductor materials and devices
- Thermal Expansion and Ionic Conductivity
- Transition Metal Oxide Nanomaterials
- Ferroelectric and Piezoelectric Materials
- Chemical Synthesis and Characterization
- X-ray Diffraction in Crystallography
- Inorganic Chemistry and Materials
- Crystallization and Solubility Studies
- Thermal properties of materials
- Graphene research and applications
- MXene and MAX Phase Materials
- Advanced Thermoelectric Materials and Devices
- Magnetic and Electromagnetic Effects
- Proteins in Food Systems
- Electron and X-Ray Spectroscopy Techniques
- Electrical and Thermal Properties of Materials
- Nuclear Physics and Applications
- Microwave Dielectric Ceramics Synthesis
- Advanced NMR Techniques and Applications
Songshan Lake Materials Laboratory
2019-2025
Chinese Academy of Sciences
2015-2024
University of California, San Diego
2020-2021
Institute of Physics
2017-2020
Shell (Netherlands)
2020
University of Chinese Academy of Sciences
2015-2019
National Laboratory for Superconductivity
2017
Czech Academy of Sciences, Institute of Physics
2017
George Mason University
2013
Abstract The recent proliferation of renewable energy generation offers mankind hope, with regard to combatting global climate change. However, reaping the full benefits these sources requires ability store and distribute any generated in a cost‐effective, safe, sustainable manner. As such, sodium‐ion batteries (NIBs) have been touted as an attractive storage technology due their elemental abundance, promising electrochemical performance environmentally benign nature. Moreover, new...
Rechargeable solid-state sodium-ion batteries (SSSBs) hold great promise for safer and more energy-dense energy storage. However, the poor electrochemical stability between current sulfide-based solid electrolytes high-voltage oxide cathodes has limited their long-term cycling performance practicality. Here, we report discovery of ion conductor Na3-xY1-xZrxCl6 (NYZC) that is both electrochemically stable (up to 3.8 V vs. Na/Na+) chemically compatible with cathodes. Its high ionic...
Decreasing Li/Ni disorder has been a challenging problem for layered oxide materials, where seriously restricts their electrochemical performances lithium-ion batteries (LIBs). Element doping is great strategy that widely used to stabilize the structure of cathode material an LIB and improve its performance. On basis results previous studies, we hypothesized element Ca, which lower valence state larger radius compared Ni2+, would be ideal decrease LiMO2 materials enhance performances. A...
Abstract Sodium (Na)‐ion batteries (NIBs) are considered promising alternative candidates to the well‐commercialized lithium‐ion batteries, especially for applications in large‐scale energy storage systems. The electrochemical performance of NIBs such as cyclability, rate capability, and voltage profiles strongly dependent on structural morphological evolution, phase transformation, sodium‐ion diffusion, electrode/electrolyte interface reconstruction during charge–discharge cycling....
Lattice-oxygen redox (l-OR) has become an essential companion to the traditional transition-metal (TM) charge compensation achieve high capacity in Li-rich cathode oxides. However, understanding of l-OR chemistry remains elusive, and a critical question is structural effect on stability reactions. Herein, coupling between structure dimensionality studied. We reveal that evolution oxygen-lattice upon TM oxides which have three-dimensional (3D)-disordered cation framework relatively stable,...
Lithium-rich Li(1.13)Ni(0.30)Mn(0.57)O2 has been functionally modified with fast Li(+)-ion conducting Li2SiO3via a facile and novel method, based on the reaction between Ni(0.35)Mn(0.65)C2O4·xH2O Si(OC2H5)4. Due to unique Li2SiO3 coating layer which greatly improves Li(+) ion diffusion rate, Li2SiO3@Li(1.13)Ni(0.30)Mn(0.57)O2 exhibits outstanding rate capability, cycle stability low polarization.
Abstract Due to their numerous advantages, such as high specific capacity, lithium–sulfur batteries (Li–S batteries) have attracted much attention next‐generation energy storage systems. To meet future needs for commercial application, Li–S will require both improved cycle life and density. It is of critical importance understand the fundamental mechanisms in systems further improve overall battery performance. Various advanced characterization techniques, over past few years, proven...
Abstract Increasing the charging cut‐off voltage (e.g., 4.6 V) to extract more Li ions are pushing LiCoO 2 (LCO) cathode achieve a higher energy density. However, an inhomogeneous cycled bulk‐to‐surface distribution, which is closely associated with enhanced extracted ions, usually ignored, and severely restricts design of long lifespan high LCO. Here, strategy by constructing artificial solid–solid diffusion environment on LCO's surface proposed homogeneous distribution upon cycling. The...
The clarity of relationship between structure and electrochemical properties layered materials possesses important guiding significance.
Abstract Fe 2 O 3 nanorods exposing (001) and (010) plane as well nanosheets have been successfully synthesized. exhibit better cycle performance rate capabilities than that of nanorods. The discharge capacity can stabilize at 865 mAh/g the 0.2 C (1C = 1000 mA/g) 570 1.2 after 80 cycles, which increased by 90% 79% compared with 456 318 In comparison plane, hematite possesses larger packing density 3+ 2− , is responsible for superior electrochemical performances addition, potentiostatic...
Abstract All‐Mn‐based Li‐rich cathodes Li 2 MnO 3 have attracted extensive attention because of their cost advantage and ultrahigh theoretical capacity. However, the unstable anionic redox reaction (ARR), which involves irreversible oxygen releases, causes declines in cycling capacity intercalation potential, thus hindering practical applications. Here, it is proposed that introducing stacking‐fault defects into can localize lattice evolutions stabilize ARR, eliminating releases. The...
Abstract Hitherto, LiFePO 4 (LFP) is bottlenecked by inferior electronic conductivity and sluggish Li + diffusion, which can be resolved cation doping, morphological engineering, carbon coating, so forth. Among these methodologies, optimization modification warrant a stable operating voltage prolong the cycling lifespan, accessible utilizing metal–organic frameworks as self‐sacrificing templates. Herein, we conceptualize strategy to in‐situ construct N‐doped carbon‐coated LFP with Prussian...
Due to a high energy density, layered transition‐metal oxides have gained much attention as the promising sodium‐ion batteries cathodes. However, they readily suffer from multiple phase transitions during Na extraction process, resulting in large lattice strains which are origin of cycled‐structure degradations. Here, we demonstrate that Na‐storage can be reduced by pushing charge transfer on anions (O 2− ). Specifically, designed O3‐type Ru‐based model compound, shows an increased anions,...
The desire for intrinsically low lattice thermal conductivity (κL) in thermoelectrics motivates numerous efforts on understanding the microscopic mechanisms of heat transport solids. Here, based theoretical calculations, we demonstrate that α-MgAgSb hosts low-energy localized phonon bands and avoided crossing rattler modes, which coincides with inelastic neutron scattering result. Using two-channel dynamical approach, find, besides conventional contribution (∼70% at 300 K) from particlelike...
During the past decades, Li-ion batteries have been one of most important energy storage devices. Large-scale requires which possess high density, low cost, and safety. Other than advanced battery materials, in-depth understanding intrinsic mechanism correlated with cell reaction is also essential for development high-performance battery. Advanced characterization techniques, especially neutron-based greatly promoted researches. In this review, characteristics or capabilities various...